69469 : Xen Backend Drivers Kernel Thread Reference Leak DoS
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Timeline

Disclosure Date
2010-11-23

Description

Xen contains a flaw that may allow a local denial of service. The issue is triggered due to the backend drivers leaking references to kernel threads, which when exploited by a malicious guest can prevent a proper virtual shutdown, prevent 'xm' commands from functioning properly, and may result in loss of availability for the service.

Classification

Location: Local Access Required
Impact: Loss of Availability
Solution: Patch / RCS
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, XEN has committed a source code patch to its repository to address this vulnerability.

Products

Citrix Systems, Inc.
Xen
Unspecified

References

Credit

CVSSv2 Score

CVSSv2 Base Score = 4.0
Source: nvd.nist.gov | Generated: 2010-12-09 | Disagree? | There are 1 more: View All

Access_vector_2 Access_complexity_2 Authentication_1 Confidentiality_impact_0 Integrity_impact_0 Availability_impact_1

Comments

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